Ui is an American post-rock/funk band based in New York City, which started in 1990. The group was started by Sasha Frere-Jones and Clem Waldmann. Wilbo Wright joined the group in 1993. The group's songs are often described as "bass-heavy", as the band frequently uses two bass guitars. Other instruments used by the band include banjo, synthesizers, tuba and timpani. Their music style is described to range between funk, dub and electronica. The group has a high reliance on samplers and other studio equipment to overdub and articulate rhythms.